get into a lot of conversations about planets, do you ?
find those conversations confusing because you mention the name of that big gas giant with the rings, and suddenly the guy you're talking to begins to loudly shout the praises of the deity you've mentioned, kills a chicken and starts scrying through its entrails looking for augurs ?
no ?
then it's probably alright to call planets by their commonly accepted names, seeing as the roman pantheon hasn't been actively worshipped in nearly 2 thousand years
also: do you think it's possible you've misunderstood the biblical injunction not to have the names of foreign gods on one's lips, seeing as the same bible mentions several heathen gods itself, with the expectation being that these same stories about B'aal worshippers getting slaughtered would be read aloud, and perhaps there's an inference you're missing along the lines of 'not swearing oaths' in the name of such idols ?